The problem is that they always slip towards the end of the season which ultimately makes them fail to win the title from Manchester City in the last 4 seasons. This season they must be able to show that they can do it even with a new coach.
Guardiola is a very good manager at playing during struggling moments, the way he messaged tho win the title last season with tons of injured and fatigued players is very impressive. Arsenal and Liverpool feel tho their face in the race, they're always very good in showing high optimism at initial moments, and their force decreases down the season.
Premier league of this season is very pregnant, I hope it delivered good, entertaining and impressive results for these teams, personally I'll be very happy if Arsenal lights the trophy for the first time in a very long time, I'm not a fan of the club, but I want some rewards for Arterta's hard works in the team.
Guardiola is Manchester City made a lot of improvements and they have a much better team compared to the last season. I think one reason for Arsenal to lose the title to Mcnshter City is Guardiola in this team otherwise they have much better players and good teamwork but that's not enough for a race with a coach like Guardiola because compared to Arteta, Guardiola is much more experienced and when Arteta was assistant coach he was working for Guardiola in Manchester City.
Now the best thing they have to do in Manchester City is to even extend the contract of Pep Guardiola and make sure they are going to have this coach for a long time.